The NTK logo and brand should be immediately recognisable and is synonymic to NGK. This is because NTK is a sister company to NGK, specialising in electronic parts such as Lambda sensors, MAF (mass air flow) sensors, as well as engine position and speed sensors.

NTK is the world’s largest supplier and manufacturer of original equipment oxygen sensors. Precision manufactured to the highest quality and durability.

This sensor is a replacement for the pre-cat (primary) oxygen sensor on EP3 models. This sensor is not compatible with Integra DC5 models, the DC5 uses a wideband sensor to measure AFR's. A faulty lambda sensor will usually trigger an EML (engine management light) and should be diagnosed and repaired as soon as possible. Symptoms for a faulty lambda sensor include excessive emissions, poor fuel economy and engine performance issues.